The Denver Zoo is celebrating the birth of four Amur tiger cubs. The quadruplets were born May 31 to mom Koshka and father Waldemere, the zoo announced in a news release.
The cubs, the first born at the zoo since 2003, are not yet on public display.
Amur tigers are “critically endangered,” the zoo said, with fewer than 400 in the wild. Waldemere was born at the Denver Zoo in 2003, and Koshka came to Denver from the Beardsley Zoo in Bridgeport, Conn., in 2008 under a breeding program.
Amurs, the largest members of the cat family, were once called “Siberian tigers,” but now that the animals are found only in the far eastern portion of Asia along the Amur River, they are commonly referred to as Amur tigers. An adult male can be nearly 4 feet tall and 7 feet long. The Denver Post
